PIC16F876A-I/SS Microchip Technology, PIC16F876A-I/SS Datasheet - Page 408
PIC16F876A-I/SS
Manufacturer Part Number
PIC16F876A-I/SS
Description
IC MCU FLASH 8KX14 EE 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16C770-ISO.pdf
(8 pages)
4.PIC16F873A-ISO.pdf
(234 pages)
5.PIC16F873A-ISO.pdf
(6 pages)
6.PIC16F873A-ISO.pdf
(4 pages)
7.PIC16F873A-ISO.pdf
(6 pages)
8.PIC16F873A-ISO.pdf
(4 pages)
9.PIC16F873A-ISO.pdf
(22 pages)
Specifications of PIC16F876A-I/SS
Core Size
8-Bit
Program Memory Size
14KB (8K x 14)
Core Processor
PIC
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP
Controller Family/series
PIC16F
No. Of I/o's
22
Eeprom Memory Size
256Byte
Ram Memory Size
368Byte
Cpu Speed
20MHz
No. Of Timers
3
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
368 B
Interface Type
I2C, SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
22
Number Of Timers
1 x 16 bit
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
Minimum Operating Temperature
- 40 C
On-chip Adc
5 bit
Data Rom Size
256 B
Height
1.75 mm
Length
10.2 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4 V
Width
5.3 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164307 - MODULE SKT FOR PM3 28SSOPAC164020 - MODULE SKT PROMATEII 44TQFPXLT28SS-1 - SOCKET TRANSITION ICE 28SSOP
Lead Free Status / Rohs Status
Details
Other names
PIC16F876AI/SS
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F876A-I/SS
Manufacturer:
MICROCHI
Quantity:
7
Part Number:
PIC16F876A-I/SS
Manufacturer:
MIC
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F873A-ISO PDF datasheet #4
- PIC16F873A-ISO PDF datasheet #5
- PIC16F873A-ISO PDF datasheet #6
- PIC16F873A-ISO PDF datasheet #7
- PIC16F873A-ISO PDF datasheet #8
- PIC16F873A-ISO PDF datasheet #9
- Current page: 408 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
22.3
DS31022A-page 22-6
A/D Acquisition Requirements
For the A/D converter to meet its specified accuracy, the charge holding capacitor (C
be allowed to fully charge to the input channel voltage level. The analog input model is shown in
Figure
directly affect the time required to charge the capacitor C
ance varies over the device voltage (V
impedance for analog sources is 10 k . After the analog input channel is selected (changed)
this acquisition must be done before the conversion can be started.
To calculate the minimum acquisition time,
that 1/2 LSb error is used (512 steps for the A/D). The 1/2 LSb error is the maximum error allowed
for the A/D to meet its specified resolution.
Equation 22-1:Acquisition Time
Equation 22-2:A/D Minimum Charging Time
Example 22-1
lation is based on the following system assumptions.
Rs
Conversion Error
V
Temperature
V
Example 22-1:
T
V
or
Tc
T
T
T
T
DD
HOLD
ACQ
ACQ
ACQ
C
ACQ
HOLD
=
22-3. The source impedance (R
=
=
=
=
=
=
=
Amplifier Settling Time +
Holding Capacitor Charging Time +
Temperature Coefficient
T
T
5 s + Tc + [(Temp - 25 C)(0.05 s/ C)]
-C
-51.2 pF (1 k + 7 k + 10 k ) ln(0.0020)
-51.2 pF (18 k ) ln(0.0020)
-0.921 s (-6.2146)
5.724 s
5 s + 5.724 s + [(50 C - 25 C)(0.05 s/ C)]
10.724 s + 1.25 s
11.974 s
(V
-(51.2 pF)(1 k + R
shows the calculation of the minimum required acquisition time T
AMP
AMP
HOLD
REF
Calculating the Minimum Required Acquisition Time
+ T
+ T
- (V
(R
=
=
=
=
C
C
IC
REF
+ T
+ T
+ R
/512)) • (1 - e
COFF
COFF
10 k
1/2 LSb
5V
50 C (system max.)
0V @ time = 0
SS
+ R
SS
Rss = 7 k
+ R
S
) ln(1/512)
S
DD
) and the internal sampling switch (R
S
) ln(1/511)
(-Tc/C
Equation 22-1
), see
HOLD
Figure
(R
IC
HOLD
(see graph in
+ R
22-3. The maximum recommended
may be used. This equation assumes
SS
. The sampling switch (R
+ R
S
))
1997 Microchip Technology Inc.
)
Figure
22-3)
ACQ
SS
) impedance
. This calcu-
HOLD
SS
) imped-
) must
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